147144772 has 6 divisors (see below), whose sum is σ = 257503358. Its totient is φ = 73572384.

The previous prime is 147144737. The next prime is 147144773. The reversal of 147144772 is 277441741.

It can be written as a sum of positive squares in only one way, i.e., 131652676 + 15492096 = 11474^2 + 3936^2 .

It is not an unprimeable number, because it can be changed into a prime (147144773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18393093 + ... + 18393100.

Almost surely, 2^147144772 is an apocalyptic number.

It is an amenable number.

147144772 is a deficient number, since it is larger than the sum of its proper divisors (110358586).

147144772 is a wasteful number, since it uses less digits than its factorization.

147144772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36786197 (or 36786195 counting only the distinct ones).

The product of its digits is 43904, while the sum is 37.

The square root of 147144772 is about 12130.3244804086. The cubic root of 147144772 is about 527.9364066737.

The spelling of 147144772 in words is "one hundred forty-seven million, one hundred forty-four thousand, seven hundred seventy-two".